N638DL (cn 23761) Delta Air Lines 757-200 N638DL arrives ATL after its second revenue service in the new livery...DL242 PUJ-ATL...May 6, 2007. This airplane is landing on runway 8R instead of the usual 8L because an AirTran 717-200 maintenance taxi broke down (steering failure) while crossing the approach end of runway 8L.